Transactive Knowledge Systems, Shared Leadership Style, and Team Effectiveness

This dissertation examines relationships between transactive memory and transactive knowledge systems, shared leadership style, and team effectiveness. Transactive memory as mediator, perspective-taking and motivation as moderators, and temporal development of transactive memory are also examined. Two studies tested an IMOI model of relationships in a longitudinal field study of students in teams and in an on-line cross-sectional sample of working adults in the United States. Study 1 and 2 provided support for shared leadership style as predictive of transactive memory, and for shared leadership style and transactive memory as predictive of team effectiveness. Both studies support transactive memory and transactive knowledge systems as mediating the relationship between shared leadership style and team effectiveness. No support emerged for perspective-taking or motivation as moderators or for situational factors influencing transactive knowledge systems over time. Findings indicate that situational factors influence emergent team cognitive structures, such as transactive memory, consequently influencing team effectiveness outcomes. Multilevel Linear Models, Study 1. Amazon Mechanical Turks, Study 2

Innovative Industry: Environmental horticulture professionals’ perceptions on wildlife-friendly plants and a potential certification offering

Plants can improve people’s lives and mental health, but consumers have become increasingly concerned about the impact of plant production practices on the environment and wildlife. Previous research has not explored the interest and ability of plant producers and suppliers to provide wildlife friendly plant options for consumers. The University of Florida is considering the development of a wildlife-friendly plant certification to enhance production protocols for growers and connect consumers to sustainable plant options. This study explored perceptions of this certification through 11 in-depth interviews with environmental horticulture professionals. The study was guided by the following research questions: 1) What experiences do environmental horticulture professionals have with wildlife-friendly plants?, 2) What trends do environmental horticulture professionals see with consumers?, 3) What are the benefits and barriers to adopting this wildlife-friendly plant certification?, and 4) What communication strategies are needed to make this wildlife-friendly plant certification viable? Results indicate environmental horticulture professionals recognize the advantages of wildlife-friendly plants. However, the interviews revealed specific barriers to adoption and communication considerations that would impact certification diffusion. Implications of this research include a need for strategic programming regarding the wildlife-friendly plant certification and cohesive communication strategies among environmental horticulture organizations to educate professionals and consumers about wildlife-friendly plant options

Adjusting for COPD severity in database research: developing and validating an algorithm

Purpose: When comparing chronic obstructive lung disease (COPD) interventions in database research, it is important to adjust for severity. Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines grade severity according to lung function. Most databases lack data on lung function. Previous database research has approximated COPD severity using demographics and healthcare utilization. This study aims to derive an algorithm for COPD severity using baseline data from a large respiratory trial (UPLIFT).Methods: Partial proportional odds logit models were developed for probabilities of being in GOLD stages II, III and I V. Concordance between predicted and observed stage was assessed using kappa-statistics. Models were estimated in a random selection of 2/3 of patients and validated in the remainder. The analysis was repeated in a subsample with a balanced distributio

A Guide to Integrating Behavioral/Process Addictions into Counselor Education Programs

Changes in CACREP standards and DSM-5diagnoses reflect the need to train counselors in the screening and treatment of behavioral/process additions (BPAs). This guide presents foundational issues counselor educators and supervisors may consider when developing an addictions course inclusive of BPAs. It also highlights components of a sample syllabus for a BPA course, including student learning outcomes (SLOs), course topics, materials, and activities/assignments. Developing curricula inclusive of BPAs is a way for counselor educators to begin to advocate for comprehensive addictions curricula within existing counselor education programs, in order to improve the competency of the counselors they train

A Guide to Integrating Behavioral/Process Addictions into Counselor Education Programs

Changes in CACREP standards and DSM-5 diagnoses reflect the need to train counselors in the screening and treatment of behavioral/process additions (BPAs). This guide presents foundational issues counselor educators and supervisors may consider when developing an addictions course inclusive of BPAs. It also highlights components of a sample syllabus for a BPA course, including student learning outcomes (SLOs), course topics, materials, and activities/assignments. Developing curricula inclusive of BPAs is a way for counselor educators to begin to advocate for comprehensive addictions curricula within existing counselor education programs, in order to improve the competency of the counselors they train

Phosphorus Transport in Intensively Managed Watersheds

An edited version of this paper was published by AGU. Copyright 2019 American Geophysical Union.Understanding controls of P movement through watersheds are essential for improved landscape management in intensively managed regions. Here, we analyze observational data from 104 gaged river sites and 176 nongaged river sites within agriculturally dominated watersheds of Minnesota, USA, to understand the role of landscape features, land use practices, climate variability, and biogeochemical processes in total, dissolved and particulate P dynamics at daily to annual scales. Our analyses demonstrate that factors mediating P concentration‐discharge relationships varied greatly across watersheds and included near‐channel sediment sources, lake and wetland interception, assimilation by algal P, and artificial land drainage. The majority of gaged sites exhibited mobilizing behavior for all forms of P at event (i.e., daily) timescales and chemostatic behavior at annual timescales. The large majority of watershed P export (>70%, on average) occurred during high flow conditions, suggesting that more frequent large storm events arising from climate change will drive increased P losses from agricultural watersheds without substantial management changes. We found that P export could be dominated by dissolved P, particulate P, or an even mix of the two forms, depending on watershed attributes. Implementation of management practices to control P losses must be guided by understanding of how local landscapes interact with current and future climate conditions. Managing for both dissolved and particulate P is required to reduce overall P load in many agricultural watersheds

Comparative clinical outcomes between direct oral anticoagulants and warfarin among elderly patients with non-valvular atrial fibrillation in the CMS medicare population

Atrial fibrillation (AF) prevalence increases with age; \u3e 80% of US adults with AF are aged ≥ 65 years. Compare the risk of stroke/systemic embolism (SE), major bleeding (MB), net clinical outcome (NCO), and major adverse cardiac events (MACE) among elderly non-valvular AF (NVAF) Medicare patients prescribed direct oral anticoagulants (DOACs) vs warfarin. NVAF patients aged ≥ 65 years who initiated DOACs (apixaban, dabigatran, and rivaroxaban) or warfarin were selected from 01JAN2013-31DEC2015 in CMS Medicare data. Propensity score matching was used to balance DOAC and warfarin cohorts. Cox proportional hazards models estimated the risk of stroke/SE, MB, NCO, and MACE. 37,525 apixaban– warfarin, 18,131 dabigatran–warfarin, and 55,359 rivaroxaban–warfarin pairs were included. Compared to warfarin, apixaban (HR: 0.69; 95% CI 0.59–0.81) and rivaroxaban (HR: 0.82; 95% CI 0.73–0.91) had lower risk of stroke/SE, and dabigatran (HR: 0.88; 95% CI 0.72–1.07) had similar risk of stroke/SE. Apixaban (MB: HR: 0.61; 95% CI 0.57–0.67; NCO: HR: 0.64; 95% CI 0.60–0.69) and dabigatran (MB: HR: 0.79; 95% CI 0.71–0.89; NCO: HR: 0.84; 95% CI 0.76–0.93) had lower risk of MB and NCO, and rivaroxaban had higher risk of MB (HR: 1.08; 95% CI 1.02–1.14) and similar risk of NCO (HR: 1.04; 95% CI 0.99–1.09). Compared to warfarin, apixaban had a lower risk for stroke/SE, MB, and NCO; dabigatran had a lower risk of MB and NCO; and rivaroxaban had a lower risk of stroke/SE but higher risk of MB. All DOACs had lower risk of MACE compared to warfarin

The in vitro effects of resistin on the innate immune signaling pathway in isolated human subcutaneous adipocytes

Context: Obesity-associated inflammation is a contributory factor in the pathogenesis of type 2 diabetes mellitus (T2DM); the mechanisms underlying the progression to T2DM are unclear. The adipokine resistin has demonstrated pro-inflammatory properties in relation to obesity and T2DM. Objective: To characterize resistin expression in human obesity and address the role of resistin in the innate immune pathway. Furthermore, examine the influence of lipopolysaccharide, recombinant human resistin (rhResistin), insulin and rosiglitazone in human adipocytes. Finally, analyze the effect of rhResistin on the expression of components of the NF-κB pathway and insulin signaling cascade. Methods: Abdominal subcutaneous adipose tissue was obtained from patients undergoing elective liposuction surgery (n = 35, aged: 36-49 yr; BMI: 26.5 ± 5.9 kg/m2). Isolated adipocytes were cultured with rhResistin (10-50 ng/ml). The level of cytokine secretion from isolated adipocytes was examined by ELISA. The effect of rhResistin on protein expression of components of the innate immune pathway was examined by Western blot. Results: In-vitro studies demonstrated that antigenic stimuli increase resistin secretion (P < 0.001) from isolated adipocytes. Pro-inflammatory cytokine levels were increased in response to rhResistin (P < 0.001); this was attenuated by rosiglitazone (P < 0.01). When examining components of the innate immune pathway, rhResistin stimulated Toll-like receptor-2 protein expression. Similarly, mediators of the insulin signaling pathway, phosphospecific JNK1 and JNK2, were upregulated in response to rhResistin. Conclusion: Resistin may participate in more than one mechanism to influence pro-inflammatory cytokine release from human adipocytes; potentially via the integration of NF-κB and JNK signaling pathways